/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.druid.util;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import com.alibaba.druid.stat.JdbcSqlStat;
import com.alibaba.druid.support.logging.Log;
import com.alibaba.druid.support.logging.LogFactory;
public class JdbcSqlStatUtils {
private final static Log LOG = LogFactory.getLog(JdbcSqlStatUtils.class);
@SuppressWarnings("unchecked")
public static Map<String, Object> getData(Object jdbcSqlStat) {
try {
if (jdbcSqlStat.getClass() == JdbcSqlStat.class) {
return ((JdbcSqlStat) jdbcSqlStat).getData();
}
Method method = jdbcSqlStat.getClass().getMethod("getData");
Object obj = method.invoke(jdbcSqlStat);
return (Map<String, Object>) obj;
} catch (Exception e) {
LOG.error("getData error", e);
return null;
}
}
public static long[] rtrim(long[] array) {
int notZeroLen = array.length;
for (int i = array.length - 1; i >= 0; --i, notZeroLen--) {
if (array[i] != 0) {
break;
}
}
if (notZeroLen != array.length) {
array = Arrays.copyOf(array, notZeroLen);
}
return array;
}
public static <T> int get(T stat, AtomicIntegerFieldUpdater<T> updater, boolean reset) {
if (reset) {
return updater.getAndSet(stat, 0);
} else {
return updater.get(stat);
}
}
public static <T> long get(T stat, AtomicLongFieldUpdater<T> updater, boolean reset) {
if (reset) {
return updater.getAndSet(stat, 0);
} else {
return updater.get(stat);
}
}
public static long get(AtomicLong counter, boolean reset) {
if (reset) {
return counter.getAndSet(0);
} else {
return counter.get();
}
}
public static int get(AtomicInteger counter, boolean reset) {
if (reset) {
return counter.getAndSet(0);
} else {
return counter.get();
}
}
}